Sierra Monitor Corporation 4501-06 Appendices, Appendix A Specifications, Page, Sensor

Model 4501-XX Toxic Gas Sensor Module

8. APPENDICES

APPENDIX A: SPECIFICATIONS

Specifications:

Sensor:

	4501-04	4501-05	4501-06
Max. Range (1)	0-1200 PPM	0-100 PPM	0-10 PPM
Zero Drift	+/- 1 PPM	+/- 0.5 PPM	+/- 0.5 PPM
Repeatability	+/- 1 PPM	+/- 1 PPM	+/- 0.5 PPM
Linearity	+/- 1 PPM	+/- 1 PPM	+/- 0.5 PPM
Resolution	0.5 PPM	0.1 PPM	0.1 PPM
Response Time (2)	<25 sec.	<30 sec.	<60 sec
Sensor Life (3)	2 years	2 years	2 years

(1)Optional ranges available

(2)Response time to 90% full signal value for applied concentration

(3)Sensor life typical for use at standard temperature and pressure with occasional exposure to gas of interest

Output:
	Display:		LCD, 2-line, 20-characters
	Signal Output:		2-wire sensor powered analog 4-20 mA (Trouble: 3.6 mA)
	Loop Resistance		800 ohm
Electrical Data:
	Power consumption:		<160 milliwatts
	Connection type:		2 wire
	Input voltage:		24 VDC nominal: 14-30VDC, 2-wire loop powered
	RFI/EMI Protection:		EN50081-2, EN50082-2
Operating Range:
		4501-04 CO		4501-05 H2S	4501-06 Cl2
	Ambient Temp (oF)	-4 to 122 oF		-40 to 122 oF	-4 to 122 oF
	Ambient Temp (oC)	-20 to 50 oC		-40 to 50 oC	-20 to 50 oC
	Relative Humidity	5 – 99%		5 – 99%	5 – 99%
	Extended Range		Sensor and 4-20 mA will continue to operate to -40oF (-40oC) but the
	Operation		LCD display will decay over time if exposed to temperatures below -4o(-
			20o C) for significant time
	Storage Temperature:		-4oto 122 oF(-20oto 50oC)
Enclosure:
	Dimensions:		7.0 x 3.6 x 4.0 inches (H x W x D)
			(17.8 x 9.1 x 11.2 cm)
	Weight:		4.4 lb. (2.0 Kg)
	Material of Construction:		316 Stainless Steel
	Enclosure:		NEMA 4X
Electrical Classification:
	FM Approved:		Explosion proof, Class 1, Div. I, Groups B, C, D
			Class 1, Zone 1, Group IIB+H2 IP66
Approvals:
	FM Performance Approval:		Approval Standards: ISA-92.0.01, Part I-1998 and FM 3600
	(4501-05 only)
Remote Sensor Option:
	Distance Sensor to Transmitter:		4501-04	25 feet
			4501-05	25 feet
			4501-06	15 feet

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